SOLUTION: The Cooper family and the Jackson family each used their sprinklers last summer. The water output rate for the Cooper family's sprinkler was 30L per hour. The water output rate for

Algebra ->  Functions -> SOLUTION: The Cooper family and the Jackson family each used their sprinklers last summer. The water output rate for the Cooper family's sprinkler was 30L per hour. The water output rate for      Log On


   

Question 1005754: The Cooper family and the Jackson family each used their sprinklers last summer. The water output rate for the Cooper family's sprinkler was 30L per hour. The water output rate for the Jackson family's sprinkler was 25L per hour. The families used their sprinklers for a combined total of 50 hours, resulting in a total water output of 1425L. How long was each sprinkler used?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
This is familiar, and a solution was given for this same problem at least a couple of times within the last four or five months.

This is a uniform rates type problem. R for rate, V for volume of water in gallons, T for time in hours, will be related as RT=V. Treat the problem the same way you might treat other uniform rates problems. Make a data table, and assign whatever variables seem fitting.

Fill-in what you need:
             rate          time         volume
COOPERS       30
JACKSON       25
TOTALS                       50          1425